function prompt_char {
    git branch >/dev/null 2>/dev/null && echo '±' && return
    hg root >/dev/null 2>/dev/null && echo 'Hg' && return
    echo '○'
}

function virtualenv_info {
    [ $VIRTUAL_ENV ] && echo `dirname $VIRTUAL_ENV | xargs basename`'#'`basename $VIRTUAL_ENV`
}

function virtualenv_info_prefix {
    [ $VIRTUAL_ENV ] && echo and
}

function collapse_pwd {
    echo $(pwd | sed -e "s,^$HOME,~,")
}

PROMPT='%{$fg[magenta]%}%n%{$reset_color%} at %{$fg[yellow]%}%m%{$reset_color%} in %{$fg_bold[green]%}${PWD/#$HOME/~}%{$reset_color%}$(git_prompt_info) using %{$reset_color%}%{$fg[red]%}$(~/.rvm/bin/rvm-prompt)%{$reset_color%} $(virtualenv_info_prefix) %{$reset_color%}%{$fg[red]%}$(virtualenv_info)%{$reset_color%}
$(prompt_char) '


ZSH_THEME_GIT_PROMPT_PREFIX=" on %{$fg[magenta]%}"
ZSH_THEME_GIT_PROMPT_SUFFIX="%{$reset_color%}"
ZSH_THEME_GIT_PROMPT_DIRTY="%{$fg[green]%}!"
ZSH_THEME_GIT_PROMPT_UNTRACKED="%{$fg[green]%}?"
ZSH_THEME_GIT_PROMPT_CLEAN=""